UDP logging for search is currently disabled. However, it would be good to be able to track the main errors. An example of one that seems important (which I was receiving earlier tonight) is:
An error has occurred while searching: HTTP request timed out
Version: unspecified
Severity: normal
| Status | Subtype | Assigned | Task | ||
|---|---|---|---|---|---|
| Declined | None | T56865 Monitor search HTTP timeouts | |||
| Resolved | None | T45544 Should return error message (rather than "zero results") when search fails |
If we're interested in timeouts only/mainly, the log for "Search backend error" could be split from mwsearch to its own log, if necessary.
Other than that, this is just a config change (Wikimedia product) I think?
This is mostly a WONTFIX for MWSearch at this point as we're moving full steam ahead towards Cirrus for everyone. The logging situation there is generally improved with slow queries and timeouts.